List of top Analog Electronics Questions asked in GATE Instrumentation Engineering

In the op-amp circuit (ideal op-amp), find $V_o$ (rounded to one decimal place).
In the nMOS feedback amplifier (capacitors act as shorts at the signal frequency): \(V_{DD}=5\,\text{V}\), \(R_D=1~\text{k}\Omega\), \(R_S=1~\text{k}\Omega\), \(R_1=200~\text{k}\Omega\), \(R_2=300~\text{k}\Omega\). Given \(\mu_n C_{ox}=1~\text{mA/V}^2\), \(W/L=2\), \(V_T=1~\text{V}\), and the DC drain voltage is \(4~\text{V}\). Find \(V_{\mathrm{out}}/V_{\mathrm{in}}\) (magnitude).
The op-amps are ideal. Inputs: $V_{S1}=3+0.10\sin(300t)\,\text{V}$ and $V_{S2}=-2+0.11\sin(300t)\,\text{V}$. Find the {average} value of $V_0$ (rounded to two decimals).
In the circuit, $V_{in}=100$ mV. The $10$ nF feedback capacitor initially stores $1$ nC with the shown polarity ($+$ at the op-amp output). The switch $S$ toggles with a $1$ kHz square wave ($1$ ms period): position ‘1’ when High, ‘2’ when Low. Find $|V_0|$ at $t=20$ ms (nearest integer, in mV).